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Finding the Fourth Proportional to 579,061.07, 868,707.69 and 199,995.70

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Solution

The fourth proportional to 579,061.07, 868,707.69 and 199,995.70 is: 300,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,061.07 : 868,707.69 = 199,995.70 : x
  2. Step 2: Convert to fraction form
    579,061.07/868,707.69 = 199,995.70/x
  3. Step 3: Cross multiply
    579,061.07x = 868,707.69 × 199,995.70
  4. Step 4: Simplify right side
    579,061.07x = 173,737,802,556.93
  5. Step 5: Solve for x
    x = 173,737,802,556.93/579,061.07
  6. Step 6: Final answer
    x = 300,033.64

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.